Package io.github.resilience4j.core

Class CheckedFunctionUtils

java.lang.Object

io.github.resilience4j.core.CheckedFunctionUtils

public class CheckedFunctionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <T, R> CheckedSupplier<R>	andThen(CheckedSupplier<T> supplier, CheckedBiFunction<T,Throwable,R> handler)	Returns a composed supplier that first applies the supplier and then applies BiFunction after to the result.
static <T> CheckedSupplier<T>	recover(CheckedSupplier<T> supplier, CheckedFunction<Throwable,T> exceptionHandler)	Returns a composed supplier that first executes the supplier and optionally recovers from an exception.
static <X extends Throwable, T> CheckedSupplier<T>	recover(CheckedSupplier<T> supplier, Class<X> exceptionType, CheckedFunction<Throwable,T> exceptionHandler)	Returns a composed supplier that first executes the supplier and optionally recovers from an exception.
static <T> CheckedSupplier<T>	recover(CheckedSupplier<T> supplier, Predicate<T> resultPredicate, CheckedFunction<T,T> resultHandler)	Returns a composed supplier that first executes the supplier and optionally recovers from a specific result.
static <T> CheckedSupplier<T>	recover(CheckedSupplier<T> supplier, List<Class<? extends Throwable>> exceptionTypes, CheckedFunction<Throwable,T> exceptionHandler)	Returns a composed supplier that first executes the supplier and optionally recovers from an exception.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

recover

public static <T> CheckedSupplier<T> recover(CheckedSupplier<T> supplier,
 CheckedFunction<Throwable,T> exceptionHandler)

Returns a composed supplier that first executes the supplier and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

supplier - the supplier which should be recovered from a certain exception

exceptionHandler - the exception handler

Returns:

a supplier composed of callable and exceptionHandler

andThen

public static <T,
R> CheckedSupplier<R> andThen(CheckedSupplier<T> supplier,
 CheckedBiFunction<T,Throwable,R> handler)

Returns a composed supplier that first applies the supplier and then applies BiFunction after to the result.

Type Parameters:

T - return type of callable

R - return type of handler

Parameters:

supplier - the supplier

handler - the supplier applied after callable

Returns:

a supplier composed of supplier and handler

recover

public static <T> CheckedSupplier<T> recover(CheckedSupplier<T> supplier,
 Predicate<T> resultPredicate,
 CheckedFunction<T,T> resultHandler)

Returns a composed supplier that first executes the supplier and optionally recovers from a specific result.

Type Parameters:

T - return type of after

Parameters:

supplier - the supplier

resultPredicate - the result predicate

resultHandler - the result handler

Returns:

a supplier composed of supplier and exceptionHandler

recover

public static <T> CheckedSupplier<T> recover(CheckedSupplier<T> supplier,
 List<Class<? extends Throwable>> exceptionTypes,
 CheckedFunction<Throwable,T> exceptionHandler)

Returns a composed supplier that first executes the supplier and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

supplier - the supplier which should be recovered from a certain exception

exceptionTypes - the specific exception types that should be recovered

exceptionHandler - the exception handler

Returns:

a supplier composed of supplier and exceptionHandler

recover

public static <X extends Throwable,
T>
CheckedSupplier<T> recover(CheckedSupplier<T> supplier,
 Class<X> exceptionType,
 CheckedFunction<Throwable,T> exceptionHandler)

Returns a composed supplier that first executes the supplier and optionally recovers from an exception.

Type Parameters:

T - return type of after

Parameters:

supplier - the supplier which should be recovered from a certain exception

exceptionType - the specific exception type that should be recovered

exceptionHandler - the exception handler

Returns:

a supplier composed of callable and exceptionHandler